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US 5,479,194 AGranted
Ink jet recording apparatus having gap adjustment between the recording head and recording medium
AssigneeCanon Kabushiki Kaisha
InventorsHirofumi Hirano, Yasuhiro Unosawa
Life of this patent
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Abstract
An ink jet recording apparatus includes a recording device for depositing ink onto a recording medium with relative movement therebetween to effect recording on the recording medium; a shaft engageable with a part of the recording device and rotatable about an eccentric axis; and a member for supporting the shaft adjacent longitudinal ends thereof for eccentric rotation of the shaft to change relative positional relation between the recording device and the recording medium.
Claims2
An ink jet recording apparatus comprising:
- a frame to which a platen, for defining a recording position for a recording material, and a first end of a shaft for movably supporting a carriage for carrying an ink jet head, are mounted, wherein a first cam plate is mounted to the first end of the shaft for displacing the shaft;
- and
- a base member to which means for maintaining an ink ejection state of said ink jet head, and a second end of said shaft are mounted, wherein said base member is mounted to said frame at a position where a second cam plate is mounted for effecting relative motion between said frame and said base member,
- wherein a gap between said platen and said shaft is adjustable to a predetermined degree and said platen and said shaft are kept parallel by rotating said first cam plate.
1 more element
Dependencies are inferred from the claim text.